Once upon a time (sometime in the 80’s) everyone in the tech business was a novice. Novice tech writers wrote for novice users about novice products created by novice developers employed by novice entrepreneurs (most of whom, apparently, had recently dropped out of Harvard).
There were no conventions about how any of this stuff was supposed to work. No one even knew what the business model was for software, let alone what the standard conventions should be for how anything should work in software or in hardware. As the popular saying of the time went, if it isn’t documented, it isn’t a feature.